<template>
  <div class="update-name">
    <!-- 导航栏 -->
    <van-nav-bar title="设置昵称" left-text="取消" right-text="完成" 
    @click-left="$emit('close')" @click-right="onConfirm" />
    <!-- /导航栏 -->
    <!-- 输入框 -->
    <div class="field-wrap">
      <van-field v-model.trim="localName" rows="2" autosize type="textarea" maxlength="7" placeholder="请输入昵称" show-word-limit />
    </div>
    <!-- /输入框 -->
  </div>
</template>

<script>
import { updateUserProfile } from '@/api/user'

export default {
  name: 'UpdateName',
  components: {},
  props: {
    value: {
      // 原生组件v-model
      type: String,
      required: true,
    },
  },
  data() {
    return {
      localName: this.value,   // 先将通过props传递过来的初始数据, 保存一份到data中
    }
  },
  computed: {},
  watch: {},
  created() {},
  mounted() {},
  methods: {
    async onConfirm() {
      this.$toast.loading({
        message: '保存中...',
        forbidClick: true,  // 禁止背景点击
        duration: 0,        // 持续展示
      })

      try {
        const localName = this.localName
        if (!localName.length) {
          this.$toast('昵称不能为空')
          return
        }

        await updateUserProfile({
          name: localName,
        })

        // 更新视图
        this.$emit('input', localName) // 发送到父组件

        // 关闭弹层
        this.$emit('close')

        // 提示成功
        this.$toast.success('更新成功')
      } catch (err) {
        this.$toast.fail('更新失败')
      }
    },
  },
}
</script>

<style scoped lang="less">
.field-wrap {
  padding: 20px;
}
</style>
